---
_id: '11591'
abstract:
- lang: eng
text: We investigate the deterministic generation and distribution of entanglement
in large quantum networks by driving distant qubits with the output fields of
a nondegenerate parametric amplifier. In this setting, the amplifier produces
a continuous Gaussian two-mode squeezed state, which acts as a quantum-correlated
reservoir for the qubits and relaxes them into a highly entangled steady state.
Here we are interested in the maximal amount of entanglement and the optimal entanglement
generation rates that can be achieved with this scheme under realistic conditions
taking, in particular, the finite amplifier bandwidth, waveguide losses, and propagation
delays into account. By combining exact numerical simulations of the full network
with approximate analytic results, we predict the optimal working point for the
amplifier and the corresponding qubit-qubit entanglement under various conditions.
Our findings show that this passive conversion of Gaussian into discrete-variable
entanglement offers a robust and experimentally very attractive approach for operating
large optical, microwave, or hybrid quantum networks, for which efficient parametric
amplifiers are currently developed.
acknowledgement: We thank T. Mavrogordatos and D. Zhu for initial contribution on
the presented topic and K. Fedorov for stimulating discussions on entangled microwave
beams. This work was supported by the Austrian Science Fund (FWF) through Grant
No. P32299 (PHONED) and the European Union’s Horizon 2020 research and innovation
programme under Grant Agreement No. 899354 (SuperQuLAN). Most of the computational
results presented were obtained using the CLIP cluster [65].
article_number: '062454'
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Agustí, J.
last_name: Agustí
- first_name: Y.
full_name: Minoguchi, Y.
last_name: Minoguchi
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: P.
full_name: Rabl, P.
last_name: Rabl
citation:
ama: Agustí J, Minoguchi Y, Fink JM, Rabl P. Long-distance distribution of qubit-qubit
entanglement using Gaussian-correlated photonic beams. Physical Review A.
2022;105(6). doi:10.1103/PhysRevA.105.062454
apa: Agustí, J., Minoguchi, Y., Fink, J. M., & Rabl, P. (2022). Long-distance
distribution of qubit-qubit entanglement using Gaussian-correlated photonic beams.
Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.105.062454
chicago: Agustí, J., Y. Minoguchi, Johannes M Fink, and P. Rabl. “Long-Distance
Distribution of Qubit-Qubit Entanglement Using Gaussian-Correlated Photonic Beams.”
Physical Review A. American Physical Society, 2022. https://doi.org/10.1103/PhysRevA.105.062454.
ieee: J. Agustí, Y. Minoguchi, J. M. Fink, and P. Rabl, “Long-distance distribution
of qubit-qubit entanglement using Gaussian-correlated photonic beams,” Physical
Review A, vol. 105, no. 6. American Physical Society, 2022.
ista: Agustí J, Minoguchi Y, Fink JM, Rabl P. 2022. Long-distance distribution of
qubit-qubit entanglement using Gaussian-correlated photonic beams. Physical Review
A. 105(6), 062454.
mla: Agustí, J., et al. “Long-Distance Distribution of Qubit-Qubit Entanglement
Using Gaussian-Correlated Photonic Beams.” Physical Review A, vol. 105,
no. 6, 062454, American Physical Society, 2022, doi:10.1103/PhysRevA.105.062454.
short: J. Agustí, Y. Minoguchi, J.M. Fink, P. Rabl, Physical Review A 105 (2022).
date_created: 2022-07-17T22:01:55Z
date_published: 2022-06-29T00:00:00Z
date_updated: 2023-08-03T11:58:16Z
day: '29'
department:
- _id: JoFi
doi: 10.1103/PhysRevA.105.062454
ec_funded: 1
external_id:
arxiv:
- '2204.02993'
isi:
- '000824330200003'
intvolume: ' 105'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2204.02993'
month: '06'
oa: 1
oa_version: Preprint
project:
- _id: 9B868D20-BA93-11EA-9121-9846C619BF3A
call_identifier: H2020
grant_number: '899354'
name: Quantum Local Area Networks with Superconducting Qubits
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Long-distance distribution of qubit-qubit entanglement using Gaussian-correlated
photonic beams
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 105
year: '2022'
...
---
_id: '14520'
abstract:
- lang: eng
text: 'This dataset comprises all data shown in the figures of the submitted article
"Compact vacuum gap transmon qubits: Selective and sensitive probes for superconductor
surface losses" at arxiv.org/abs/2206.14104. Additional raw data are available
from the corresponding author on reasonable request.'
article_processing_charge: No
author:
- first_name: Martin
full_name: Zemlicka, Martin
id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
last_name: Zemlicka
- first_name: Elena
full_name: Redchenko, Elena
id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
last_name: Redchenko
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
- first_name: Farid
full_name: Hassani, Farid
id: 2AED110C-F248-11E8-B48F-1D18A9856A87
last_name: Hassani
orcid: 0000-0001-6937-5773
- first_name: Andrea
full_name: Trioni, Andrea
id: 42F71B44-F248-11E8-B48F-1D18A9856A87
last_name: Trioni
- first_name: Shabir
full_name: Barzanjeh, Shabir
id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
last_name: Barzanjeh
orcid: 0000-0003-0415-1423
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
citation:
ama: 'Zemlicka M, Redchenko E, Peruzzo M, et al. Compact vacuum gap transmon qubits:
Selective and sensitive probes for superconductor surface losses. 2022. doi:10.5281/ZENODO.8408897'
apa: 'Zemlicka, M., Redchenko, E., Peruzzo, M., Hassani, F., Trioni, A., Barzanjeh,
S., & Fink, J. M. (2022). Compact vacuum gap transmon qubits: Selective and
sensitive probes for superconductor surface losses. Zenodo. https://doi.org/10.5281/ZENODO.8408897'
chicago: 'Zemlicka, Martin, Elena Redchenko, Matilda Peruzzo, Farid Hassani, Andrea
Trioni, Shabir Barzanjeh, and Johannes M Fink. “Compact Vacuum Gap Transmon Qubits:
Selective and Sensitive Probes for Superconductor Surface Losses.” Zenodo, 2022.
https://doi.org/10.5281/ZENODO.8408897.'
ieee: 'M. Zemlicka et al., “Compact vacuum gap transmon qubits: Selective
and sensitive probes for superconductor surface losses.” Zenodo, 2022.'
ista: 'Zemlicka M, Redchenko E, Peruzzo M, Hassani F, Trioni A, Barzanjeh S, Fink
JM. 2022. Compact vacuum gap transmon qubits: Selective and sensitive probes for
superconductor surface losses, Zenodo, 10.5281/ZENODO.8408897.'
mla: 'Zemlicka, Martin, et al. Compact Vacuum Gap Transmon Qubits: Selective
and Sensitive Probes for Superconductor Surface Losses. Zenodo, 2022, doi:10.5281/ZENODO.8408897.'
short: M. Zemlicka, E. Redchenko, M. Peruzzo, F. Hassani, A. Trioni, S. Barzanjeh,
J.M. Fink, (2022).
date_created: 2023-11-13T08:09:10Z
date_published: 2022-06-28T00:00:00Z
date_updated: 2023-11-13T09:22:48Z
day: '28'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.8408897
has_accepted_license: '1'
license: https://creativecommons.org/publicdomain/zero/1.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/ZENODO.8408897
month: '06'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
record:
- id: '14517'
relation: used_in_publication
status: public
status: public
title: 'Compact vacuum gap transmon qubits: Selective and sensitive probes for superconductor
surface losses'
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '12366'
abstract:
- lang: eng
text: "Recent substantial advances in the feld of superconducting circuits have
shown its\r\npotential as a leading platform for future quantum computing. In
contrast to classical\r\ncomputers based on bits that are represented by a single
binary value, 0 or 1, quantum\r\nbits (or qubits) can be in a superposition of
both. Thus, quantum computers can store\r\nand handle more information at the
same time and a quantum advantage has already\r\nbeen demonstrated for two types
of computational tasks. Rapid progress in academic\r\nand industry labs accelerates
the development of superconducting processors which may\r\nsoon fnd applications
in complex computations, chemical simulations, cryptography, and\r\noptimization.
Now that these machines are scaled up to tackle such problems the questions\r\nof
qubit interconnects and networks becomes very relevant. How to route signals on-chip\r\nbetween
diferent processor components? What is the most efcient way to entangle\r\nqubits?
And how to then send and process entangled signals between distant cryostats\r\nhosting
superconducting processors?\r\nIn this thesis, we are looking for solutions to
these problems by studying the collective\r\nbehavior of superconducting qubit
ensembles. We frst demonstrate on-demand tunable\r\ndirectional scattering of
microwave photons from a pair of qubits in a waveguide. Such a\r\ndevice can route
microwave photons on-chip with a high diode efciency. Then we focus\r\non studying
ultra-strong coupling regimes between light (microwave photons) and matter\r\n(superconducting
qubits), a regime that could be promising for extremely fast multi-qubit\r\nentanglement
generation. Finally, we show coherent pulse storage and periodic revivals\r\nin
a fve qubit ensemble strongly coupled to a resonator. Such a reconfgurable storage\r\ndevice
could be used as part of a quantum repeater that is needed for longer-distance\r\nquantum
communication.\r\nThe achieved high degree of control over multi-qubit ensembles
highlights not only the\r\nbeautiful physics of circuit quantum electrodynamics,
it also represents the frst step\r\ntoward new quantum simulation and communication
methods, and certain techniques\r\nmay also fnd applications in future superconducting
quantum computing hardware.\r\n"
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
- _id: EM-Fac
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Elena
full_name: Redchenko, Elena
id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
last_name: Redchenko
citation:
ama: Redchenko E. Controllable states of superconducting Qubit ensembles. 2022.
doi:10.15479/at:ista:12132
apa: Redchenko, E. (2022). Controllable states of superconducting Qubit ensembles.
Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:12132
chicago: Redchenko, Elena. “Controllable States of Superconducting Qubit Ensembles.”
Institute of Science and Technology Austria, 2022. https://doi.org/10.15479/at:ista:12132.
ieee: E. Redchenko, “Controllable states of superconducting Qubit ensembles,” Institute
of Science and Technology Austria, 2022.
ista: Redchenko E. 2022. Controllable states of superconducting Qubit ensembles.
Institute of Science and Technology Austria.
mla: Redchenko, Elena. Controllable States of Superconducting Qubit Ensembles.
Institute of Science and Technology Austria, 2022, doi:10.15479/at:ista:12132.
short: E. Redchenko, Controllable States of Superconducting Qubit Ensembles, Institute
of Science and Technology Austria, 2022.
date_created: 2023-01-25T09:17:02Z
date_published: 2022-09-26T00:00:00Z
date_updated: 2023-05-26T09:29:07Z
day: '26'
ddc:
- '530'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoFi
doi: 10.15479/at:ista:12132
ec_funded: 1
file:
- access_level: open_access
checksum: 39eabb1e006b41335f17f3b29af09648
content_type: application/pdf
creator: cchlebak
date_created: 2023-01-25T09:41:49Z
date_updated: 2023-01-26T23:30:44Z
embargo: 2022-12-28
file_id: '12367'
file_name: Final_Thesis_ES_Redchenko.pdf
file_size: 56076868
relation: main_file
file_date_updated: 2023-01-26T23:30:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '168'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 26336814-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '758053'
name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 237CBA6C-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '862644'
name: Quantum readout techniques and technologies
publication_identifier:
isbn:
- 978-3-99078-024-4
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
status: public
supervisor:
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
title: Controllable states of superconducting Qubit ensembles
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2022'
...
---
_id: '10645'
abstract:
- lang: eng
text: "Superconducting qubits have emerged as a highly versatile and useful platform
for quantum technological applications [1]. Bluefors and Zurich Instruments have
supported the growth of this field from the 2010s onwards by providing well-engineered
and reliable measurement infrastructure [2]– [6]. Having a long and stable qubit
lifetime is a critical system property. Therefore, considerable effort has already
gone into measuring qubit energy-relaxation timescales and their fluctuations,
see Refs. [7]–[10] among others. Accurately extracting the statistics of a quantum
device requires users to perform time consuming measurements. One measurement
challenge is that the detection of the state-dependent\r\nresponse of a superconducting
resonator due to a dispersively-coupled qubit requires an inherently low signal
level. Consequently, measurements must be performed using a microwave probe that
contains only a few microwave photons. Improving the signal-to-noise ratio (SNR)
by using near-quantum limited parametric amplifiers as well as the use of optimized
signal processing enabled by efficient room temperature instrumentation help to
reduce measurement time. An empirical observation for fixed frequency transmons
from recent literature is that as the energy-relaxation time \U0001D447\U0001D4471
increases, so do its natural temporal fluctuations [7], [10]. This necessitates
many repeated measurements to understand the statistics (see for example, Ref.
[10]). In addition, as state-of-the-art qubits increase in lifetime, longer\r\nmeasurement
times are expected to obtain accurate statistics. As described below, the scaling
of the widths of the qubit energy-relaxation distributions also reveal clues about
the origin of the energy-relaxation."
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Slawomir
full_name: Simbierowicz, Slawomir
last_name: Simbierowicz
- first_name: Chunyan
full_name: Shi, Chunyan
last_name: Shi
- first_name: Michele
full_name: Collodo, Michele
last_name: Collodo
- first_name: Moritz
full_name: Kirste, Moritz
last_name: Kirste
- first_name: Farid
full_name: Hassani, Farid
id: 2AED110C-F248-11E8-B48F-1D18A9856A87
last_name: Hassani
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Jonas
full_name: Bylander, Jonas
last_name: Bylander
- first_name: Daniel
full_name: Perez Lozano, Daniel
last_name: Perez Lozano
- first_name: Russell
full_name: Lake, Russell
last_name: Lake
citation:
ama: 'Simbierowicz S, Shi C, Collodo M, et al. Qubit Energy-Relaxation Statistics
in the Bluefors Quantum Measurement System. Helsinki, Finland: Bluefors Oy;
2021.'
apa: 'Simbierowicz, S., Shi, C., Collodo, M., Kirste, M., Hassani, F., Fink, J.
M., … Lake, R. (2021). Qubit energy-relaxation statistics in the Bluefors quantum
measurement system. Helsinki, Finland: Bluefors Oy.'
chicago: 'Simbierowicz, Slawomir, Chunyan Shi, Michele Collodo, Moritz Kirste, Farid
Hassani, Johannes M Fink, Jonas Bylander, Daniel Perez Lozano, and Russell Lake.
Qubit Energy-Relaxation Statistics in the Bluefors Quantum Measurement System.
Helsinki, Finland: Bluefors Oy, 2021.'
ieee: 'S. Simbierowicz et al., Qubit energy-relaxation statistics in the
Bluefors quantum measurement system. Helsinki, Finland: Bluefors Oy, 2021.'
ista: 'Simbierowicz S, Shi C, Collodo M, Kirste M, Hassani F, Fink JM, Bylander
J, Perez Lozano D, Lake R. 2021. Qubit energy-relaxation statistics in the Bluefors
quantum measurement system, Helsinki, Finland: Bluefors Oy, 8p.'
mla: Simbierowicz, Slawomir, et al. Qubit Energy-Relaxation Statistics in the
Bluefors Quantum Measurement System. Bluefors Oy, 2021.
short: S. Simbierowicz, C. Shi, M. Collodo, M. Kirste, F. Hassani, J.M. Fink, J.
Bylander, D. Perez Lozano, R. Lake, Qubit Energy-Relaxation Statistics in the
Bluefors Quantum Measurement System, Bluefors Oy, Helsinki, Finland, 2021.
date_created: 2022-01-19T08:41:14Z
date_published: 2021-06-03T00:00:00Z
date_updated: 2022-01-19T09:11:39Z
day: '03'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://bluefors.com/blog/application-note-qubit-energy-relaxation-statistics-bluefors-quantum-measurement-system/
month: '06'
oa: 1
oa_version: Published Version
page: '8'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: Qubit energy-relaxation statistics in the Bluefors quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '10644'
abstract:
- lang: eng
text: The purpose of this application note is to demonstrate a working example of
a superconducting qubit measurement in a Bluefors cryostat using the Keysight
quantum control hardware. Our motivation is twofold. First, we provide pre-qualification
data that the Bluefors cryostat, including filtering and wiring, can support long-lived
qubits. Second, we demonstrate that the Keysight system (controlled using Labber)
provides a straightforward solution to perform these characterization measurements.
This document is intended as a brief guide for starting an experimental platform
for testing superconducting qubits. The setup described here is an immediate jumping
off point for a suite of applications including testing quantum logical gates,
quantum optics with microwaves, or even using the qubit itself as a sensitive
probe of local electromagnetic fields. Qubit measurements rely on high performance
of both the physical sample environment and the measurement electronics. An overview
of the cryogenic system is shown in Figure 1, and an overview of the integration
between the electronics and cryostat (including wiring details) is shown in Figure
2.
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Russell
full_name: Lake, Russell
last_name: Lake
- first_name: Slawomir
full_name: Simbierowicz, Slawomir
last_name: Simbierowicz
- first_name: Philip
full_name: Krantz, Philip
last_name: Krantz
- first_name: Farid
full_name: Hassani, Farid
id: 2AED110C-F248-11E8-B48F-1D18A9856A87
last_name: Hassani
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
citation:
ama: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. The Bluefors Dilution
Refrigerator as an Integrated Quantum Measurement System. Helsinki, Finland:
Bluefors Oy; 2021.'
apa: 'Lake, R., Simbierowicz, S., Krantz, P., Hassani, F., & Fink, J. M. (2021).
The Bluefors dilution refrigerator as an integrated quantum measurement system.
Helsinki, Finland: Bluefors Oy.'
chicago: 'Lake, Russell, Slawomir Simbierowicz, Philip Krantz, Farid Hassani, and
Johannes M Fink. The Bluefors Dilution Refrigerator as an Integrated Quantum
Measurement System. Helsinki, Finland: Bluefors Oy, 2021.'
ieee: 'R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, and J. M. Fink, The Bluefors
dilution refrigerator as an integrated quantum measurement system. Helsinki,
Finland: Bluefors Oy, 2021.'
ista: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. 2021. The Bluefors
dilution refrigerator as an integrated quantum measurement system, Helsinki, Finland:
Bluefors Oy, 9p.'
mla: Lake, Russell, et al. The Bluefors Dilution Refrigerator as an Integrated
Quantum Measurement System. Bluefors Oy, 2021.
short: R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, J.M. Fink, The Bluefors
Dilution Refrigerator as an Integrated Quantum Measurement System, Bluefors Oy,
Helsinki, Finland, 2021.
date_created: 2022-01-19T08:29:57Z
date_published: 2021-04-20T00:00:00Z
date_updated: 2022-01-19T09:11:33Z
day: '20'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://bluefors.com/blog/integrated-quantum-measurement-system/
month: '04'
oa: 1
oa_version: Published Version
page: '9'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: The Bluefors dilution refrigerator as an integrated quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '9242'
abstract:
- lang: eng
text: In the recent years important experimental advances in resonant electro-optic
modulators as high-efficiency sources for coherent frequency combs and as devices
for quantum information transfer have been realized, where strong optical and
microwave mode coupling were achieved. These features suggest electro-optic-based
devices as candidates for entangled optical frequency comb sources. In the present
work, I study the generation of entangled optical frequency combs in millimeter-sized
resonant electro-optic modulators. These devices profit from the experimentally
proven advantages such as nearly constant optical free spectral ranges over several
gigahertz, and high optical and microwave quality factors. The generation of frequency
multiplexed quantum channels with spectral bandwidth in the MHz range for conservative
parameter values paves the way towards novel uses in long-distance hybrid quantum
networks, quantum key distribution, enhanced optical metrology, and quantum computing.
acknowledgement: "I thank Prof. Shabir Barzanjeh and Dr. Ulrich Vogl for the fruitful
discussions.\r\n"
article_number: '023708'
article_processing_charge: No
article_type: original
author:
- first_name: Alfredo R
full_name: Rueda Sanchez, Alfredo R
id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
last_name: Rueda Sanchez
orcid: 0000-0001-6249-5860
citation:
ama: Rueda Sanchez AR. Frequency-multiplexed hybrid optical entangled source based
on the Pockels effect. Physical Review A. 2021;103(2). doi:10.1103/PhysRevA.103.023708
apa: Rueda Sanchez, A. R. (2021). Frequency-multiplexed hybrid optical entangled
source based on the Pockels effect. Physical Review A. American Physical
Society. https://doi.org/10.1103/PhysRevA.103.023708
chicago: Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled
Source Based on the Pockels Effect.” Physical Review A. American Physical
Society, 2021. https://doi.org/10.1103/PhysRevA.103.023708.
ieee: A. R. Rueda Sanchez, “Frequency-multiplexed hybrid optical entangled source
based on the Pockels effect,” Physical Review A, vol. 103, no. 2. American
Physical Society, 2021.
ista: Rueda Sanchez AR. 2021. Frequency-multiplexed hybrid optical entangled source
based on the Pockels effect. Physical Review A. 103(2), 023708.
mla: Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled Source
Based on the Pockels Effect.” Physical Review A, vol. 103, no. 2, 023708,
American Physical Society, 2021, doi:10.1103/PhysRevA.103.023708.
short: A.R. Rueda Sanchez, Physical Review A 103 (2021).
date_created: 2021-03-14T23:01:33Z
date_published: 2021-02-11T00:00:00Z
date_updated: 2023-08-07T14:11:18Z
day: '11'
department:
- _id: JoFi
doi: 10.1103/PhysRevA.103.023708
external_id:
arxiv:
- '2010.05356'
isi:
- '000617037900013'
intvolume: ' 103'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2010.05356
month: '02'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frequency-multiplexed hybrid optical entangled source based on the Pockels
effect
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 103
year: '2021'
...
---
_id: '13057'
abstract:
- lang: eng
text: 'This dataset comprises all data shown in the figures of the submitted article
"Geometric superinductance qubits: Controlling phase delocalization across a single
Josephson junction". Additional raw data are available from the corresponding
author on reasonable request.'
article_processing_charge: No
author:
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
- first_name: Farid
full_name: Hassani, Farid
id: 2AED110C-F248-11E8-B48F-1D18A9856A87
last_name: Hassani
orcid: 0000-0001-6937-5773
- first_name: Grisha
full_name: Szep, Grisha
last_name: Szep
- first_name: Andrea
full_name: Trioni, Andrea
id: 42F71B44-F248-11E8-B48F-1D18A9856A87
last_name: Trioni
- first_name: Elena
full_name: Redchenko, Elena
id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
last_name: Redchenko
- first_name: Martin
full_name: Zemlicka, Martin
id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
last_name: Zemlicka
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
citation:
ama: 'Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling
phase delocalization across a single Josephson junction. 2021. doi:10.5281/ZENODO.5592103'
apa: 'Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M.,
& Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase
delocalization across a single Josephson junction. Zenodo. https://doi.org/10.5281/ZENODO.5592103'
chicago: 'Peruzzo, Matilda, Farid Hassani, Grisha Szep, Andrea Trioni, Elena Redchenko,
Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling
Phase Delocalization across a Single Josephson Junction.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.5592103.'
ieee: 'M. Peruzzo et al., “Geometric superinductance qubits: Controlling
phase delocalization across a single Josephson junction.” Zenodo, 2021.'
ista: 'Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM.
2021. Geometric superinductance qubits: Controlling phase delocalization across
a single Josephson junction, Zenodo, 10.5281/ZENODO.5592103.'
mla: 'Peruzzo, Matilda, et al. Geometric Superinductance Qubits: Controlling
Phase Delocalization across a Single Josephson Junction. Zenodo, 2021, doi:10.5281/ZENODO.5592103.'
short: M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M.
Fink, (2021).
date_created: 2023-05-23T13:42:27Z
date_published: 2021-10-22T00:00:00Z
date_updated: 2023-08-11T10:44:21Z
day: '22'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.5592103
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
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url: https://doi.org/10.5281/zenodo.5592104
month: '10'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
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relation: used_in_publication
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status: public
title: 'Geometric superinductance qubits: Controlling phase delocalization across
a single Josephson junction'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '9928'
abstract:
- lang: eng
text: There are two elementary superconducting qubit types that derive directly
from the quantum harmonic oscillator. In one, the inductor is replaced by a nonlinear
Josephson junction to realize the widely used charge qubits with a compact phase
variable and a discrete charge wave function. In the other, the junction is added
in parallel, which gives rise to an extended phase variable, continuous wave functions,
and a rich energy-level structure due to the loop topology. While the corresponding
rf superconducting quantum interference device Hamiltonian was introduced as a
quadratic quasi-one-dimensional potential approximation to describe the fluxonium
qubit implemented with long Josephson-junction arrays, in this work we implement
it directly using a linear superinductor formed by a single uninterrupted aluminum
wire. We present a large variety of qubits, all stemming from the same circuit
but with drastically different characteristic energy scales. This includes flux
and fluxonium qubits but also the recently introduced quasicharge qubit with strongly
enhanced zero-point phase fluctuations and a heavily suppressed flux dispersion.
The use of a geometric inductor results in high reproducibility of the inductive
energy as guaranteed by top-down lithography—a key ingredient for intrinsically
protected superconducting qubits.
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: We thank W. Hughes for analytic and numerical modeling during the
early stages of this work, J. Koch for discussions and support with the scqubits
package, R. Sett, P. Zielinski, and L. Drmic for software development, and G. Katsaros
for equipment support, as well as the MIBA workshop and the Institute of Science
and Technology Austria nanofabrication facility. We thank I. Pop, S. Deleglise,
and E. Flurin for discussions. This work was supported by a NOMIS Foundation research
grant, the Austrian Science Fund (FWF) through BeyondC (F7105), and IST Austria.
M.P. is the recipient of a Pöttinger scholarship at IST Austria. E.R. is the recipient
of a DOC fellowship of the Austrian Academy of Sciences at IST Austria.
article_processing_charge: No
article_type: original
author:
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
- first_name: Farid
full_name: Hassani, Farid
id: 2AED110C-F248-11E8-B48F-1D18A9856A87
last_name: Hassani
orcid: 0000-0001-6937-5773
- first_name: Gregory
full_name: Szep, Gregory
last_name: Szep
- first_name: Andrea
full_name: Trioni, Andrea
id: 42F71B44-F248-11E8-B48F-1D18A9856A87
last_name: Trioni
- first_name: Elena
full_name: Redchenko, Elena
id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
last_name: Redchenko
- first_name: Martin
full_name: Zemlicka, Martin
id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
last_name: Zemlicka
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
citation:
ama: 'Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling
phase delocalization across a single Josephson junction. PRX Quantum. 2021;2(4):040341.
doi:10.1103/PRXQuantum.2.040341'
apa: 'Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M.,
& Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase
delocalization across a single Josephson junction. PRX Quantum. American
Physical Society. https://doi.org/10.1103/PRXQuantum.2.040341'
chicago: 'Peruzzo, Matilda, Farid Hassani, Gregory Szep, Andrea Trioni, Elena Redchenko,
Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling
Phase Delocalization across a Single Josephson Junction.” PRX Quantum.
American Physical Society, 2021. https://doi.org/10.1103/PRXQuantum.2.040341.'
ieee: 'M. Peruzzo et al., “Geometric superinductance qubits: Controlling
phase delocalization across a single Josephson junction,” PRX Quantum,
vol. 2, no. 4. American Physical Society, p. 040341, 2021.'
ista: 'Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM.
2021. Geometric superinductance qubits: Controlling phase delocalization across
a single Josephson junction. PRX Quantum. 2(4), 040341.'
mla: 'Peruzzo, Matilda, et al. “Geometric Superinductance Qubits: Controlling Phase
Delocalization across a Single Josephson Junction.” PRX Quantum, vol. 2,
no. 4, American Physical Society, 2021, p. 040341, doi:10.1103/PRXQuantum.2.040341.'
short: M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M.
Fink, PRX Quantum 2 (2021) 040341.
date_created: 2021-08-17T08:14:18Z
date_published: 2021-11-24T00:00:00Z
date_updated: 2023-09-07T13:31:22Z
day: '24'
ddc:
- '530'
department:
- _id: JoFi
- _id: NanoFab
- _id: M-Shop
doi: 10.1103/PRXQuantum.2.040341
ec_funded: 1
external_id:
arxiv:
- '2106.05882'
isi:
- '000723015100001'
file:
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checksum: 36eb41ea43d8ca22b0efab12419e4eb2
content_type: application/pdf
creator: cchlebak
date_created: 2022-01-18T11:29:33Z
date_updated: 2022-01-18T11:29:33Z
file_id: '10641'
file_name: 2021_PRXQuantum_Peruzzo.pdf
file_size: 4247422
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success: 1
file_date_updated: 2022-01-18T11:29:33Z
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intvolume: ' 2'
isi: 1
issue: '4'
keyword:
- quantum physics
- mesoscale and nanoscale physics
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '040341'
project:
- _id: 26927A52-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: F07105
name: Integrating superconducting quantum circuits
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 2622978C-B435-11E9-9278-68D0E5697425
name: Hybrid Semiconductor - Superconductor Quantum Devices
publication: PRX Quantum
publication_identifier:
eissn:
- 2691-3399
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
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- id: '13057'
relation: research_data
status: public
- id: '9920'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: 'Geometric superinductance qubits: Controlling phase delocalization across
a single Josephson junction'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 2
year: '2021'
...
---
_id: '9920'
abstract:
- lang: eng
text: 'This work is concerned with two fascinating circuit quantum electrodynamics
components, the Josephson junction and the geometric superinductor, and the interesting
experiments that can be done by combining the two. The Josephson junction has
revolutionized the field of superconducting circuits as a non-linear dissipation-less
circuit element and is used in almost all superconducting qubit implementations
since the 90s. On the other hand, the superinductor is a relatively new circuit
element introduced as a key component of the fluxonium qubit in 2009. This is
an inductor with characteristic impedance larger than the resistance quantum and
self-resonance frequency in the GHz regime. The combination of these two elements
can occur in two fundamental ways: in parallel and in series. When connected in
parallel the two create the fluxonium qubit, a loop with large inductance and
a rich energy spectrum reliant on quantum tunneling. On the other hand placing
the two elements in series aids with the measurement of the IV curve of a single
Josephson junction in a high impedance environment. In this limit theory predicts
that the junction will behave as its dual element: the phase-slip junction. While
the Josephson junction acts as a non-linear inductor the phase-slip junction has
the behavior of a non-linear capacitance and can be used to measure new Josephson
junction phenomena, namely Coulomb blockade of Cooper pairs and phase-locked Bloch
oscillations. The latter experiment allows for a direct link between frequency
and current which is an elusive connection in quantum metrology. This work introduces
the geometric superinductor, a superconducting circuit element where the high
inductance is due to the geometry rather than the material properties of the superconductor,
realized from a highly miniaturized superconducting planar coil. These structures
will be described and characterized as resonators and qubit inductors and progress
towards the measurement of phase-locked Bloch oscillations will be presented.'
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
citation:
ama: Peruzzo M. Geometric superinductors and their applications in circuit quantum
electrodynamics. 2021. doi:10.15479/at:ista:9920
apa: Peruzzo, M. (2021). Geometric superinductors and their applications in circuit
quantum electrodynamics. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:9920
chicago: Peruzzo, Matilda. “Geometric Superinductors and Their Applications in Circuit
Quantum Electrodynamics.” Institute of Science and Technology Austria, 2021. https://doi.org/10.15479/at:ista:9920.
ieee: M. Peruzzo, “Geometric superinductors and their applications in circuit quantum
electrodynamics,” Institute of Science and Technology Austria, 2021.
ista: Peruzzo M. 2021. Geometric superinductors and their applications in circuit
quantum electrodynamics. Institute of Science and Technology Austria.
mla: Peruzzo, Matilda. Geometric Superinductors and Their Applications in Circuit
Quantum Electrodynamics. Institute of Science and Technology Austria, 2021,
doi:10.15479/at:ista:9920.
short: M. Peruzzo, Geometric Superinductors and Their Applications in Circuit Quantum
Electrodynamics, Institute of Science and Technology Austria, 2021.
date_created: 2021-08-16T09:44:09Z
date_published: 2021-08-19T00:00:00Z
date_updated: 2023-09-07T13:31:22Z
day: '19'
ddc:
- '539'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoFi
doi: 10.15479/at:ista:9920
file:
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checksum: 3cd1986efde5121d7581f6fcf9090da8
content_type: application/x-zip-compressed
creator: mperuzzo
date_created: 2021-08-16T09:33:21Z
date_updated: 2021-09-06T08:39:47Z
file_id: '9924'
file_name: GeometricSuperinductorsForCQED.zip
file_size: 151387283
relation: source_file
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content_type: application/pdf
creator: mperuzzo
date_created: 2021-08-18T14:20:06Z
date_updated: 2021-09-06T08:39:47Z
file_id: '9939'
file_name: GeometricSuperinductorsAndTheirApplicationsIncQED-1b.pdf
file_size: 17596344
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checksum: 37f486aa1b622fe44af00d627ec13f6c
content_type: application/pdf
creator: mperuzzo
date_created: 2021-08-18T14:20:09Z
date_updated: 2021-09-06T08:39:47Z
description: Extra copy of the thesis as PDF/A-2b
file_id: '9940'
file_name: GeometricSuperinductorsAndTheirApplicationsIncQED-2b.pdf
file_size: 17592425
relation: other
file_date_updated: 2021-09-06T08:39:47Z
has_accepted_license: '1'
keyword:
- quantum computing
- superinductor
- quantum metrology
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: '149'
publication_identifier:
isbn:
- 978-3-99078-013-8
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '9928'
relation: part_of_dissertation
status: public
- id: '8755'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
title: Geometric superinductors and their applications in circuit quantum electrodynamics
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2021'
...
---
_id: '9815'
abstract:
- lang: eng
text: The quantum bits (qubits) on which superconducting quantum computers are based
have energy scales corresponding to photons with GHz frequencies. The energy of
photons in the gigahertz domain is too low to allow transmission through the noisy
room-temperature environment, where the signal would be lost in thermal noise.
Optical photons, on the other hand, have much higher energies, and signals can
be detected using highly efficient single-photon detectors. Transduction from
microwave to optical frequencies is therefore a potential enabling technology
for quantum devices. However, in such a device the optical pump can be a source
of thermal noise and thus degrade the fidelity; the similarity of input microwave
state to the output optical state. In order to investigate the magnitude of this
effect we model the sub-Kelvin thermal behavior of an electro-optic transducer
based on a lithium niobate whispering gallery mode resonator. We find that there
is an optimum power level for a continuous pump, whilst pulsed operation of the
pump increases the fidelity of the conversion.
acknowledgement: NJL is supported by the MBIE Endeavour Fund (UOOX1805) and GL is
by the Julius von Haast Fellowship of New Zealand. SM acknowledges stimulating discussions
with T M Jensen.
article_number: '045005'
article_processing_charge: Yes
article_type: original
author:
- first_name: Sonia
full_name: Mobassem, Sonia
last_name: Mobassem
- first_name: Nicholas J.
full_name: Lambert, Nicholas J.
last_name: Lambert
- first_name: Alfredo R
full_name: Rueda Sanchez, Alfredo R
id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
last_name: Rueda Sanchez
orcid: 0000-0001-6249-5860
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Gerd
full_name: Leuchs, Gerd
last_name: Leuchs
- first_name: Harald G.L.
full_name: Schwefel, Harald G.L.
last_name: Schwefel
citation:
ama: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
Thermal noise in electro-optic devices at cryogenic temperatures. Quantum Science
and Technology. 2021;6(4). doi:10.1088/2058-9565/ac0f36
apa: Mobassem, S., Lambert, N. J., Rueda Sanchez, A. R., Fink, J. M., Leuchs, G.,
& Schwefel, H. G. L. (2021). Thermal noise in electro-optic devices at cryogenic
temperatures. Quantum Science and Technology. IOP Publishing. https://doi.org/10.1088/2058-9565/ac0f36
chicago: Mobassem, Sonia, Nicholas J. Lambert, Alfredo R Rueda Sanchez, Johannes
M Fink, Gerd Leuchs, and Harald G.L. Schwefel. “Thermal Noise in Electro-Optic
Devices at Cryogenic Temperatures.” Quantum Science and Technology. IOP
Publishing, 2021. https://doi.org/10.1088/2058-9565/ac0f36.
ieee: S. Mobassem, N. J. Lambert, A. R. Rueda Sanchez, J. M. Fink, G. Leuchs, and
H. G. L. Schwefel, “Thermal noise in electro-optic devices at cryogenic temperatures,”
Quantum Science and Technology, vol. 6, no. 4. IOP Publishing, 2021.
ista: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
2021. Thermal noise in electro-optic devices at cryogenic temperatures. Quantum
Science and Technology. 6(4), 045005.
mla: Mobassem, Sonia, et al. “Thermal Noise in Electro-Optic Devices at Cryogenic
Temperatures.” Quantum Science and Technology, vol. 6, no. 4, 045005, IOP
Publishing, 2021, doi:10.1088/2058-9565/ac0f36.
short: S. Mobassem, N.J. Lambert, A.R. Rueda Sanchez, J.M. Fink, G. Leuchs, H.G.L.
Schwefel, Quantum Science and Technology 6 (2021).
date_created: 2021-08-08T22:01:25Z
date_published: 2021-07-15T00:00:00Z
date_updated: 2023-10-17T12:54:54Z
day: '15'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1088/2058-9565/ac0f36
external_id:
arxiv:
- '2008.08764'
isi:
- '000673081500001'
file:
- access_level: open_access
checksum: b15c2c228487a75002c3b52d56f23d5c
content_type: application/pdf
creator: cchlebak
date_created: 2021-08-09T12:23:13Z
date_updated: 2021-08-09T12:23:13Z
file_id: '9836'
file_name: 2021_QuantumScienceTechnology_Mobassem.pdf
file_size: 2366118
relation: main_file
file_date_updated: 2021-08-09T12:23:13Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Quantum Science and Technology
publication_identifier:
eissn:
- 2058-9565
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermal noise in electro-optic devices at cryogenic temperatures
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2021'
...